Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 13-01-2022 and time 09:27:31 (Italy) in region 5 km NW Amatrice (RI)

A magnitude ML 1.1 earthquake occured in region: 5 km NW Amatrice (RI), on

  • 13-01-2022 08:27:31 (UTC)
  • 13-01-2022 09:27:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6520, 13.2410 at 13 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Amatrice RI 5 2657 2657
Accumoli RI 5 667 3324
Cittareale RI 8 482 3806
Montereale AQ 14 2581 6387
Arquata del Tronto AP 14 1178 7565
Campotosto AQ 15 542 8107
Capitignano AQ 15 665 8772
Borbona RI 18 617 9389
Posta RI 19 694 10083
Acquasanta Terme AP 19 2916 12999
Norcia PG 20 4957 17956

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.1 2022-01-13
08:27:31		 42.6523 13.241 13 2022-01-13
08:35:01		 Sala Sismica INGV-Roma 99732231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-13 08:27:31 ± 0.11
Latitude 42.6523 ± 0.0045
Longitude 13.2410 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 99732231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 499
Semi-minor axis of confidence ellipse (meter) 86
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.26890
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 99732231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-13 08:35:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2022-01-13T08:27:41.76 0.6 undecidable manual S 96 29.8479 98 -0.23 47
IV.NRCA.HHZ. 2022-01-13T08:27:39.83 0.6 undecidable manual S 333 22.5552 102 -0.26 47
IV.RM33.EHZ. 2022-01-13T08:27:38.23 0.6 undecidable manual S 188 16.0728 114 -0.2 48
IV.LNSS.HHZ. 2022-01-13T08:27:38.57 0.6 undecidable manual S 252 17.2716 111 -0.16 48
IV.MTRA.EHZ. 2022-01-13T08:27:38.48 0.6 undecidable manual S 48 17.1717 111 -0.22 48
IV.TERO.HHZ. 2022-01-13T08:27:37.59 0.6 negative manual P 96 29.8479 98 0.02 49
IV.SMA1.EHZ. 2022-01-13T08:27:36.65 0.6 undecidable manual S 107 8.0808 140 -0.07 50
IV.NRCA.HHZ. 2022-01-13T08:27:36.55 0.1 positive manual P 333 22.5552 102 0.07 99
IV.MTRA.EHZ. 2022-01-13T08:27:35.81 0.3 positive manual P 48 17.1717 111 0.13 74
IV.RM33.EHZ. 2022-01-13T08:27:35.68 1.0 negative manual P 188 16.0728 114 0.16 25
IV.LNSS.HHZ. 2022-01-13T08:27:35.78 0.1 positive manual P 252 17.2716 111 0.09 100
IV.SMA1.EHZ. 2022-01-13T08:27:34.78 0.1 positive manual P 107 8.0808 140 0.25 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.3 0.00020785605000000001 0.16 AML other m 2022-01-13T08:27:37.16
IV.SMA1.EHE. ML:1.6 0.0004095 0.2 AML other m 2022-01-13T08:27:37.25
IV.RM33.EHE. ML:0.7 0.000038932785 0.3584 AML other m 2022-01-13T08:27:38.76
IV.RM33.EHN. ML:1.0 0.00007576580999999999 1.6832 AML other m 2022-01-13T08:27:35.80
IV.LNSS.HHE. ML:1.1 0.00009217565499999999 0.1216 AML other m 2022-01-13T08:27:38.81
IV.LNSS.HHN. ML:0.9 0.000063098155 0.1408 AML other m 2022-01-13T08:27:38.70
IV.MTRA.EHE. ML:0.9 0.000066979375 0.16 AML other m 2022-01-13T08:27:38.88
IV.MTRA.EHN. ML:1.1 0.000089536825 0.16 AML other m 2022-01-13T08:27:38.63
IV.NRCA.HHE. ML:1.1 0.00006897179500000001 0.1408 AML other m 2022-01-13T08:27:39.97
IV.NRCA.HHN. ML:1.3 0.00010843644499999999 0.1408 AML other m 2022-01-13T08:27:40.03
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download